Tim Robbins, Susan Sarandon Split

Actors Tim Robbins and Susan Sarandon -- who became one of Hollywood's longest-lasting and most prominent couples during their 23 years together -- have split, PEOPLE is exclusively reporting. A rep for Sarandon says despite the pre-Christmas announcement, the duo have been separated for months.

Tim and Susan Through the Years Getty Images 5 photos Previous Next Susan Sarandon and Tim Robbins have been together since ... well, since sunglasses and neon-striped shirts on the red carpet were cool. Click to See Pics of the Duo Through Time >>>

Sarandon's rep, Teal Cannaday, confirms the news to PEOPLE, saying: "Actress Susan Sarandon and her partner of 23 years, actor Tim Robbins have announced that they separated over the summer."

Sarandon, 63, and Robbins, 51, began dating in 1988 after meeting on the set of 'Bull Durham.' They have two sons together: Jack Henry, who is now 20, and Miles Guthrie, 17.

During their time together, Sarandon and Robbins became known as much for their activism as they were for their acting. During the 2000s, they became outspoken critics of President George W. Bush and the Iraq war.

They are better off breaking up. 23 years is a loooonnnggggg damn time to be with the same person. Can you imagine how worn out and boring things must have been. As for sex, that probably got old AT LEAST fifteen years ago. Good for them!

Probably when you stop wiping your ass with your reich-wing toilet paper of the total douche bags , Reagan-Bush-Bush-Cheney the reason & policies that ruined our country , nation & government ! -What a slop hole freak you are !